American Horror Story may not incorporate meme monster Slenderman into its coming sixth season, but that won’t stop cable from taking a deeper dive into internet horror. HBO will air a new documentary Beware the Slenderman, the first poster of which is already RIGHT BEHIND YOU.

Indiwire debuted the first official poster for Beware the Slenderman, which lacks an official HBO premiere date, but will debut at SXSW this coming Friday. Award-winning director Irene Taylor Brodsky helmed the film, exploring the Creepypasta character that seemingly inspired two 12-year old girls to stab their Waukesha, Wisconsin classmate 19 times.

HBO Beware the Slenderman Poster

Brodsky reportedly spent time with the families of both girls, and will use the documentary to explore “not only the effect that Internet lore has on real-life actions, but also how the digital age is saturating the imagination and actions of children.” For those unfamiliar with “Slender Man,” the children-hunting ghoul originated in Something Awful forums back in 2009, and has since become a commonly-recognized horror meme.

In the meantime, check out the official poster above, and stay tuned for more on HBO’s unsettling new documentary.

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